1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
11 //! nodes for functional tests.
13 use chain::{BestBlock, Confirm, Listen, Watch};
14 use chain::channelmonitor::ChannelMonitor;
15 use chain::transaction::OutPoint;
16 use ln::{PaymentPreimage, PaymentHash, PaymentSecret};
17 use ln::channelmanager::{ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, PaymentId};
18 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
19 use routing::router::{Payee, Route, get_route};
20 use ln::features::{InitFeatures, InvoiceFeatures};
22 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
23 use util::enforcing_trait_impls::EnforcingSigner;
25 use util::test_utils::TestChainMonitor;
26 use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
27 use util::errors::APIError;
28 use util::config::UserConfig;
29 use util::ser::{ReadableArgs, Writeable, Readable};
31 use bitcoin::blockdata::block::{Block, BlockHeader};
32 use bitcoin::blockdata::constants::genesis_block;
33 use bitcoin::blockdata::transaction::{Transaction, TxOut};
34 use bitcoin::network::constants::Network;
36 use bitcoin::hashes::sha256::Hash as Sha256;
37 use bitcoin::hashes::Hash;
38 use bitcoin::hash_types::BlockHash;
40 use bitcoin::secp256k1::key::PublicKey;
44 use core::cell::RefCell;
46 use sync::{Arc, Mutex};
49 pub const CHAN_CONFIRM_DEPTH: u32 = 10;
51 /// Mine the given transaction in the next block and then mine CHAN_CONFIRM_DEPTH - 1 blocks on
52 /// top, giving the given transaction CHAN_CONFIRM_DEPTH confirmations.
53 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
54 confirm_transaction_at(node, tx, node.best_block_info().1 + 1);
55 connect_blocks(node, CHAN_CONFIRM_DEPTH - 1);
57 /// Mine a signle block containing the given transaction
58 pub fn mine_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
59 let height = node.best_block_info().1 + 1;
60 confirm_transaction_at(node, tx, height);
62 /// Mine the given transaction at the given height, mining blocks as required to build to that
64 pub fn confirm_transaction_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) {
65 let first_connect_height = node.best_block_info().1 + 1;
66 assert!(first_connect_height <= conf_height);
67 if conf_height > first_connect_height {
68 connect_blocks(node, conf_height - first_connect_height);
70 let mut block = Block {
71 header: BlockHeader { version: 0x20000000, prev_blockhash: node.best_block_hash(), merkle_root: Default::default(), time: conf_height, bits: 42, nonce: 42 },
74 for _ in 0..*node.network_chan_count.borrow() { // Make sure we don't end up with channels at the same short id by offsetting by chan_count
75 block.txdata.push(Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() });
77 block.txdata.push(tx.clone());
78 connect_block(node, &block);
81 /// The possible ways we may notify a ChannelManager of a new block
82 #[derive(Clone, Copy, PartialEq)]
83 pub enum ConnectStyle {
84 /// Calls best_block_updated first, detecting transactions in the block only after receiving the
85 /// header and height information.
87 /// The same as BestBlockFirst, however when we have multiple blocks to connect, we only
88 /// make a single best_block_updated call.
89 BestBlockFirstSkippingBlocks,
90 /// Calls transactions_confirmed first, detecting transactions in the block before updating the
91 /// header and height information.
93 /// The same as TransactionsFirst, however when we have multiple blocks to connect, we only
94 /// make a single best_block_updated call.
95 TransactionsFirstSkippingBlocks,
96 /// Provides the full block via the chain::Listen interface. In the current code this is
97 /// equivalent to TransactionsFirst with some additional assertions.
101 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32) -> BlockHash {
102 let skip_intermediaries = match *node.connect_style.borrow() {
103 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks => true,
107 let height = node.best_block_info().1 + 1;
108 let mut block = Block {
109 header: BlockHeader { version: 0x2000000, prev_blockhash: node.best_block_hash(), merkle_root: Default::default(), time: height, bits: 42, nonce: 42 },
114 do_connect_block(node, &block, skip_intermediaries);
116 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: height + i, bits: 42, nonce: 42 },
120 connect_block(node, &block);
121 block.header.block_hash()
124 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block) {
125 do_connect_block(node, block, false);
128 fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, skip_intermediaries: bool) {
129 let height = node.best_block_info().1 + 1;
130 if !skip_intermediaries {
131 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
132 match *node.connect_style.borrow() {
133 ConnectStyle::BestBlockFirst|ConnectStyle::BestBlockFirstSkippingBlocks => {
134 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
135 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
136 node.node.best_block_updated(&block.header, height);
137 node.node.transactions_confirmed(&block.header, &txdata, height);
139 ConnectStyle::TransactionsFirst|ConnectStyle::TransactionsFirstSkippingBlocks => {
140 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
141 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
142 node.node.transactions_confirmed(&block.header, &txdata, height);
143 node.node.best_block_updated(&block.header, height);
145 ConnectStyle::FullBlockViaListen => {
146 node.chain_monitor.chain_monitor.block_connected(&block, height);
147 node.node.block_connected(&block, height);
151 node.node.test_process_background_events();
152 node.blocks.lock().unwrap().push((block.header, height));
155 pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
157 let orig_header = node.blocks.lock().unwrap().pop().unwrap();
158 assert!(orig_header.1 > 0); // Cannot disconnect genesis
159 let prev_header = node.blocks.lock().unwrap().last().unwrap().clone();
161 match *node.connect_style.borrow() {
162 ConnectStyle::FullBlockViaListen => {
163 node.chain_monitor.chain_monitor.block_disconnected(&orig_header.0, orig_header.1);
164 Listen::block_disconnected(node.node, &orig_header.0, orig_header.1);
166 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks => {
168 node.chain_monitor.chain_monitor.best_block_updated(&prev_header.0, prev_header.1);
169 node.node.best_block_updated(&prev_header.0, prev_header.1);
173 node.chain_monitor.chain_monitor.best_block_updated(&prev_header.0, prev_header.1);
174 node.node.best_block_updated(&prev_header.0, prev_header.1);
180 pub fn disconnect_all_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
181 let count = node.blocks.lock().unwrap().len() as u32 - 1;
182 disconnect_blocks(node, count);
185 pub struct TestChanMonCfg {
186 pub tx_broadcaster: test_utils::TestBroadcaster,
187 pub fee_estimator: test_utils::TestFeeEstimator,
188 pub chain_source: test_utils::TestChainSource,
189 pub persister: test_utils::TestPersister,
190 pub logger: test_utils::TestLogger,
191 pub keys_manager: test_utils::TestKeysInterface,
192 pub network_graph: NetworkGraph,
195 pub struct NodeCfg<'a> {
196 pub chain_source: &'a test_utils::TestChainSource,
197 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
198 pub fee_estimator: &'a test_utils::TestFeeEstimator,
199 pub chain_monitor: test_utils::TestChainMonitor<'a>,
200 pub keys_manager: &'a test_utils::TestKeysInterface,
201 pub logger: &'a test_utils::TestLogger,
202 pub network_graph: &'a NetworkGraph,
203 pub node_seed: [u8; 32],
204 pub features: InitFeatures,
207 pub struct Node<'a, 'b: 'a, 'c: 'b> {
208 pub chain_source: &'c test_utils::TestChainSource,
209 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
210 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
211 pub keys_manager: &'b test_utils::TestKeysInterface,
212 pub node: &'a ChannelManager<EnforcingSigner, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
213 pub network_graph: &'c NetworkGraph,
214 pub net_graph_msg_handler: NetGraphMsgHandler<&'c NetworkGraph, &'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
215 pub node_seed: [u8; 32],
216 pub network_payment_count: Rc<RefCell<u8>>,
217 pub network_chan_count: Rc<RefCell<u32>>,
218 pub logger: &'c test_utils::TestLogger,
219 pub blocks: Arc<Mutex<Vec<(BlockHeader, u32)>>>,
220 pub connect_style: Rc<RefCell<ConnectStyle>>,
222 impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
223 pub fn best_block_hash(&self) -> BlockHash {
224 self.blocks.lock().unwrap().last().unwrap().0.block_hash()
226 pub fn best_block_info(&self) -> (BlockHash, u32) {
227 self.blocks.lock().unwrap().last().map(|(a, b)| (a.block_hash(), *b)).unwrap()
229 pub fn get_block_header(&self, height: u32) -> BlockHeader {
230 self.blocks.lock().unwrap()[height as usize].0
234 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
236 if !::std::thread::panicking() {
237 // Check that we processed all pending events
238 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
239 assert!(self.node.get_and_clear_pending_events().is_empty());
240 assert!(self.chain_monitor.added_monitors.lock().unwrap().is_empty());
242 // Check that if we serialize the Router, we can deserialize it again.
244 let mut w = test_utils::TestVecWriter(Vec::new());
245 self.network_graph.write(&mut w).unwrap();
246 let network_graph_deser = <NetworkGraph>::read(&mut io::Cursor::new(&w.0)).unwrap();
247 assert!(network_graph_deser == *self.network_graph);
248 let net_graph_msg_handler = NetGraphMsgHandler::new(
249 &network_graph_deser, Some(self.chain_source), self.logger
251 let mut chan_progress = 0;
253 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
254 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
255 assert!(orig_announcements == deserialized_announcements);
256 chan_progress = match orig_announcements.last() {
257 Some(announcement) => announcement.0.contents.short_channel_id + 1,
261 let mut node_progress = None;
263 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
264 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
265 assert!(orig_announcements == deserialized_announcements);
266 node_progress = match orig_announcements.last() {
267 Some(announcement) => Some(announcement.contents.node_id),
273 // Check that if we serialize and then deserialize all our channel monitors we get the
274 // same set of outputs to watch for on chain as we have now. Note that if we write
275 // tests that fully close channels and remove the monitors at some point this may break.
276 let feeest = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
277 let mut deserialized_monitors = Vec::new();
279 for outpoint in self.chain_monitor.chain_monitor.list_monitors() {
280 let mut w = test_utils::TestVecWriter(Vec::new());
281 self.chain_monitor.chain_monitor.get_monitor(outpoint).unwrap().write(&mut w).unwrap();
282 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
283 &mut io::Cursor::new(&w.0), self.keys_manager).unwrap();
284 deserialized_monitors.push(deserialized_monitor);
288 // Before using all the new monitors to check the watch outpoints, use the full set of
289 // them to ensure we can write and reload our ChannelManager.
291 let mut channel_monitors = HashMap::new();
292 for monitor in deserialized_monitors.iter_mut() {
293 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
296 let mut w = test_utils::TestVecWriter(Vec::new());
297 self.node.write(&mut w).unwrap();
298 <(BlockHash, ChannelManager<EnforcingSigner, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut io::Cursor::new(w.0), ChannelManagerReadArgs {
299 default_config: *self.node.get_current_default_configuration(),
300 keys_manager: self.keys_manager,
301 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) },
302 chain_monitor: self.chain_monitor,
303 tx_broadcaster: &test_utils::TestBroadcaster {
304 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone()),
305 blocks: Arc::new(Mutex::new(self.tx_broadcaster.blocks.lock().unwrap().clone())),
307 logger: &self.logger,
312 let persister = test_utils::TestPersister::new();
313 let broadcaster = test_utils::TestBroadcaster {
314 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone()),
315 blocks: Arc::new(Mutex::new(self.tx_broadcaster.blocks.lock().unwrap().clone())),
317 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
318 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister, &self.keys_manager);
319 for deserialized_monitor in deserialized_monitors.drain(..) {
320 if let Err(_) = chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
324 assert_eq!(*chain_source.watched_txn.lock().unwrap(), *self.chain_source.watched_txn.lock().unwrap());
325 assert_eq!(*chain_source.watched_outputs.lock().unwrap(), *self.chain_source.watched_outputs.lock().unwrap());
330 pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
331 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
334 pub fn create_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
335 let (funding_locked, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
336 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
337 (announcement, as_update, bs_update, channel_id, tx)
340 macro_rules! get_revoke_commit_msgs {
341 ($node: expr, $node_id: expr) => {
343 let events = $node.node.get_and_clear_pending_msg_events();
344 assert_eq!(events.len(), 2);
346 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
347 assert_eq!(*node_id, $node_id);
350 _ => panic!("Unexpected event"),
352 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
353 assert_eq!(*node_id, $node_id);
354 assert!(updates.update_add_htlcs.is_empty());
355 assert!(updates.update_fulfill_htlcs.is_empty());
356 assert!(updates.update_fail_htlcs.is_empty());
357 assert!(updates.update_fail_malformed_htlcs.is_empty());
358 assert!(updates.update_fee.is_none());
359 updates.commitment_signed.clone()
361 _ => panic!("Unexpected event"),
367 /// Get an specific event message from the pending events queue.
369 macro_rules! get_event_msg {
370 ($node: expr, $event_type: path, $node_id: expr) => {
372 let events = $node.node.get_and_clear_pending_msg_events();
373 assert_eq!(events.len(), 1);
375 $event_type { ref node_id, ref msg } => {
376 assert_eq!(*node_id, $node_id);
379 _ => panic!("Unexpected event"),
385 /// Get a specific event from the pending events queue.
387 macro_rules! get_event {
388 ($node: expr, $event_type: path) => {
390 let mut events = $node.node.get_and_clear_pending_events();
391 assert_eq!(events.len(), 1);
392 let ev = events.pop().unwrap();
394 $event_type { .. } => {
397 _ => panic!("Unexpected event"),
404 macro_rules! get_htlc_update_msgs {
405 ($node: expr, $node_id: expr) => {
407 let events = $node.node.get_and_clear_pending_msg_events();
408 assert_eq!(events.len(), 1);
410 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
411 assert_eq!(*node_id, $node_id);
414 _ => panic!("Unexpected event"),
421 macro_rules! get_channel_ref {
422 ($node: expr, $lock: ident, $channel_id: expr) => {
424 $lock = $node.node.channel_state.lock().unwrap();
425 $lock.by_id.get_mut(&$channel_id).unwrap()
431 macro_rules! get_feerate {
432 ($node: expr, $channel_id: expr) => {
435 let chan = get_channel_ref!($node, lock, $channel_id);
441 /// Returns a channel monitor given a channel id, making some naive assumptions
443 macro_rules! get_monitor {
444 ($node: expr, $channel_id: expr) => {
446 use bitcoin::hashes::Hash;
447 let mut monitor = None;
448 // Assume funding vout is either 0 or 1 blindly
450 if let Ok(mon) = $node.chain_monitor.chain_monitor.get_monitor(
451 $crate::chain::transaction::OutPoint {
452 txid: bitcoin::Txid::from_slice(&$channel_id[..]).unwrap(), index
464 /// Returns any local commitment transactions for the channel.
466 macro_rules! get_local_commitment_txn {
467 ($node: expr, $channel_id: expr) => {
469 $crate::get_monitor!($node, $channel_id).unsafe_get_latest_holder_commitment_txn(&$node.logger)
474 /// Check the error from attempting a payment.
476 macro_rules! unwrap_send_err {
477 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
479 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
480 assert_eq!(fails.len(), 1);
486 &Err(PaymentSendFailure::PartialFailure { ref results, .. }) if !$all_failed => {
487 assert_eq!(results.len(), 1);
489 Err($type) => { $check },
498 /// Check whether N channel monitor(s) have been added.
500 macro_rules! check_added_monitors {
501 ($node: expr, $count: expr) => {
503 let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
504 assert_eq!(added_monitors.len(), $count);
505 added_monitors.clear();
510 pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_chan_value: u64, expected_user_chan_id: u64) -> ([u8; 32], Transaction, OutPoint) {
511 let chan_id = *node.network_chan_count.borrow();
513 let events = node.node.get_and_clear_pending_events();
514 assert_eq!(events.len(), 1);
516 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
517 assert_eq!(*channel_value_satoshis, expected_chan_value);
518 assert_eq!(user_channel_id, expected_user_chan_id);
520 let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
521 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
523 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
524 (*temporary_channel_id, tx, funding_outpoint)
526 _ => panic!("Unexpected event"),
529 pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, expected_temporary_channel_id: [u8; 32]) -> Transaction {
530 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
531 assert_eq!(temporary_channel_id, expected_temporary_channel_id);
533 node_a.node.funding_transaction_generated(&temporary_channel_id, tx.clone()).unwrap();
534 check_added_monitors!(node_a, 0);
536 let funding_created_msg = get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id());
537 assert_eq!(funding_created_msg.temporary_channel_id, expected_temporary_channel_id);
538 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &funding_created_msg);
540 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
541 assert_eq!(added_monitors.len(), 1);
542 assert_eq!(added_monitors[0].0, funding_output);
543 added_monitors.clear();
546 node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id()));
548 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
549 assert_eq!(added_monitors.len(), 1);
550 assert_eq!(added_monitors[0].0, funding_output);
551 added_monitors.clear();
554 let events_4 = node_a.node.get_and_clear_pending_events();
555 assert_eq!(events_4.len(), 0);
557 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
558 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap()[0], tx);
559 node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
564 pub fn create_chan_between_nodes_with_value_init<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> Transaction {
565 let create_chan_id = node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
566 let open_channel_msg = get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id());
567 assert_eq!(open_channel_msg.temporary_channel_id, create_chan_id);
568 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &open_channel_msg);
569 let accept_channel_msg = get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id());
570 assert_eq!(accept_channel_msg.temporary_channel_id, create_chan_id);
571 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &accept_channel_msg);
573 sign_funding_transaction(node_a, node_b, channel_value, create_chan_id)
576 pub fn create_chan_between_nodes_with_value_confirm_first<'a, 'b, 'c, 'd>(node_recv: &'a Node<'b, 'c, 'c>, node_conf: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) {
577 confirm_transaction_at(node_conf, tx, conf_height);
578 connect_blocks(node_conf, CHAN_CONFIRM_DEPTH - 1);
579 node_recv.node.handle_funding_locked(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendFundingLocked, node_recv.node.get_our_node_id()));
582 pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
584 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
585 assert_eq!(events_6.len(), 2);
586 ((match events_6[0] {
587 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
588 channel_id = msg.channel_id.clone();
589 assert_eq!(*node_id, node_recv.node.get_our_node_id());
592 _ => panic!("Unexpected event"),
593 }, match events_6[1] {
594 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
595 assert_eq!(*node_id, node_recv.node.get_our_node_id());
598 _ => panic!("Unexpected event"),
602 pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
603 let conf_height = core::cmp::max(node_a.best_block_info().1 + 1, node_b.best_block_info().1 + 1);
604 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx, conf_height);
605 confirm_transaction_at(node_a, tx, conf_height);
606 connect_blocks(node_a, CHAN_CONFIRM_DEPTH - 1);
607 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
610 pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
611 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
612 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
616 pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, as_funding_msgs: &(msgs::FundingLocked, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
617 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
618 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
619 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
621 let events_7 = node_b.node.get_and_clear_pending_msg_events();
622 assert_eq!(events_7.len(), 1);
623 let (announcement, bs_update) = match events_7[0] {
624 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
627 _ => panic!("Unexpected event"),
630 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
631 let events_8 = node_a.node.get_and_clear_pending_msg_events();
632 assert_eq!(events_8.len(), 1);
633 let as_update = match events_8[0] {
634 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
635 assert!(*announcement == *msg);
636 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
637 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
640 _ => panic!("Unexpected event"),
643 *node_a.network_chan_count.borrow_mut() += 1;
645 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
648 pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
649 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
652 pub fn create_announced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
653 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
654 update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
655 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
658 pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, ann: &msgs::ChannelAnnouncement, upd_1: &msgs::ChannelUpdate, upd_2: &msgs::ChannelUpdate) {
659 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
660 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
661 assert!(a_events.len() >= 2);
663 // ann should be re-generated by broadcast_node_announcement - check that we have it.
664 let mut found_ann_1 = false;
665 for event in a_events.iter() {
667 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, .. } => {
668 if msg == ann { found_ann_1 = true; }
670 MessageSendEvent::BroadcastNodeAnnouncement { .. } => {},
671 _ => panic!("Unexpected event {:?}", event),
674 assert!(found_ann_1);
676 let a_node_announcement = match a_events.last().unwrap() {
677 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
680 _ => panic!("Unexpected event"),
683 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
684 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
685 assert!(b_events.len() >= 2);
687 // ann should be re-generated by broadcast_node_announcement - check that we have it.
688 let mut found_ann_2 = false;
689 for event in b_events.iter() {
691 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, .. } => {
692 if msg == ann { found_ann_2 = true; }
694 MessageSendEvent::BroadcastNodeAnnouncement { .. } => {},
695 _ => panic!("Unexpected event"),
698 assert!(found_ann_2);
700 let b_node_announcement = match b_events.last().unwrap() {
701 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
704 _ => panic!("Unexpected event"),
708 assert!(node.net_graph_msg_handler.handle_channel_announcement(ann).unwrap());
709 node.net_graph_msg_handler.handle_channel_update(upd_1).unwrap();
710 node.net_graph_msg_handler.handle_channel_update(upd_2).unwrap();
711 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
712 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
716 macro_rules! check_spends {
717 ($tx: expr, $($spends_txn: expr),*) => {
720 for outp in $spends_txn.output.iter() {
721 assert!(outp.value >= outp.script_pubkey.dust_value().as_sat(), "Input tx output didn't meet dust limit");
724 for outp in $tx.output.iter() {
725 assert!(outp.value >= outp.script_pubkey.dust_value().as_sat(), "Spending tx output didn't meet dust limit");
727 let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
729 if out_point.txid == $spends_txn.txid() {
730 return $spends_txn.output.get(out_point.vout as usize).cloned()
735 let mut total_value_in = 0;
736 for input in $tx.input.iter() {
737 total_value_in += get_output(&input.previous_output).unwrap().value;
739 let mut total_value_out = 0;
740 for output in $tx.output.iter() {
741 total_value_out += output.value;
743 let min_fee = ($tx.get_weight() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
744 // Input amount - output amount = fee, so check that out + min_fee is smaller than input
745 assert!(total_value_out + min_fee <= total_value_in);
746 $tx.verify(get_output).unwrap();
751 macro_rules! get_closing_signed_broadcast {
752 ($node: expr, $dest_pubkey: expr) => {
754 let events = $node.get_and_clear_pending_msg_events();
755 assert!(events.len() == 1 || events.len() == 2);
756 (match events[events.len() - 1] {
757 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
758 assert_eq!(msg.contents.flags & 2, 2);
761 _ => panic!("Unexpected event"),
762 }, if events.len() == 2 {
764 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
765 assert_eq!(*node_id, $dest_pubkey);
768 _ => panic!("Unexpected event"),
775 /// Check that a channel's closing channel update has been broadcasted, and optionally
776 /// check whether an error message event has occurred.
778 macro_rules! check_closed_broadcast {
779 ($node: expr, $with_error_msg: expr) => {{
780 let msg_events = $node.node.get_and_clear_pending_msg_events();
781 assert_eq!(msg_events.len(), if $with_error_msg { 2 } else { 1 });
782 match msg_events[0] {
783 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
784 assert_eq!(msg.contents.flags & 2, 2);
786 _ => panic!("Unexpected event"),
789 match msg_events[1] {
790 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
791 // TODO: Check node_id
794 _ => panic!("Unexpected event"),
800 /// Check that a channel's closing channel events has been issued
802 macro_rules! check_closed_event {
803 ($node: expr, $events: expr, $reason: expr) => {
804 check_closed_event!($node, $events, $reason, false);
806 ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr) => {{
807 let events = $node.node.get_and_clear_pending_events();
808 assert_eq!(events.len(), $events);
809 let expected_reason = $reason;
810 let mut issues_discard_funding = false;
811 for event in events {
813 Event::ChannelClosed { ref reason, .. } => {
814 assert_eq!(*reason, expected_reason);
816 Event::DiscardFunding { .. } => {
817 issues_discard_funding = true;
819 _ => panic!("Unexpected event"),
822 assert_eq!($is_check_discard_funding, issues_discard_funding);
826 pub fn close_channel<'a, 'b, 'c>(outbound_node: &Node<'a, 'b, 'c>, inbound_node: &Node<'a, 'b, 'c>, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) {
827 let (node_a, broadcaster_a, struct_a) = if close_inbound_first { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) } else { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) };
828 let (node_b, broadcaster_b, struct_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) } else { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) };
831 node_a.close_channel(channel_id).unwrap();
832 node_b.handle_shutdown(&node_a.get_our_node_id(), &InitFeatures::known(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
834 let events_1 = node_b.get_and_clear_pending_msg_events();
835 assert!(events_1.len() >= 1);
836 let shutdown_b = match events_1[0] {
837 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
838 assert_eq!(node_id, &node_a.get_our_node_id());
841 _ => panic!("Unexpected event"),
844 let closing_signed_b = if !close_inbound_first {
845 assert_eq!(events_1.len(), 1);
848 Some(match events_1[1] {
849 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
850 assert_eq!(node_id, &node_a.get_our_node_id());
853 _ => panic!("Unexpected event"),
857 node_a.handle_shutdown(&node_b.get_our_node_id(), &InitFeatures::known(), &shutdown_b);
858 let (as_update, bs_update) = if close_inbound_first {
859 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
860 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
862 node_b.handle_closing_signed(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id()));
863 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
864 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
865 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
867 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
868 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
869 assert!(none_a.is_none());
870 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
871 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
872 (as_update, bs_update)
874 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
876 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
877 node_a.handle_closing_signed(&node_b.get_our_node_id(), &get_event_msg!(struct_b, MessageSendEvent::SendClosingSigned, node_a.get_our_node_id()));
879 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
880 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
881 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
883 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
884 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
885 assert!(none_b.is_none());
886 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
887 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
888 (as_update, bs_update)
890 assert_eq!(tx_a, tx_b);
891 check_spends!(tx_a, funding_tx);
893 (as_update, bs_update, tx_a)
896 pub struct SendEvent {
897 pub node_id: PublicKey,
898 pub msgs: Vec<msgs::UpdateAddHTLC>,
899 pub commitment_msg: msgs::CommitmentSigned,
902 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
903 assert!(updates.update_fulfill_htlcs.is_empty());
904 assert!(updates.update_fail_htlcs.is_empty());
905 assert!(updates.update_fail_malformed_htlcs.is_empty());
906 assert!(updates.update_fee.is_none());
907 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
910 pub fn from_event(event: MessageSendEvent) -> SendEvent {
912 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
913 _ => panic!("Unexpected event type!"),
917 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
918 let mut events = node.node.get_and_clear_pending_msg_events();
919 assert_eq!(events.len(), 1);
920 SendEvent::from_event(events.pop().unwrap())
924 macro_rules! commitment_signed_dance {
925 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
927 check_added_monitors!($node_a, 0);
928 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
929 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
930 check_added_monitors!($node_a, 1);
931 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
934 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
936 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
937 check_added_monitors!($node_b, 0);
938 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
939 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
940 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
941 check_added_monitors!($node_b, 1);
942 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
943 let (bs_revoke_and_ack, extra_msg_option) = {
944 let events = $node_b.node.get_and_clear_pending_msg_events();
945 assert!(events.len() <= 2);
947 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
948 assert_eq!(*node_id, $node_a.node.get_our_node_id());
951 _ => panic!("Unexpected event"),
952 }, events.get(1).map(|e| e.clone()))
954 check_added_monitors!($node_b, 1);
956 assert!($node_a.node.get_and_clear_pending_events().is_empty());
957 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
959 (extra_msg_option, bs_revoke_and_ack)
962 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
964 check_added_monitors!($node_a, 0);
965 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
966 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
967 check_added_monitors!($node_a, 1);
968 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
969 assert!(extra_msg_option.is_none());
973 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
975 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
976 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
977 check_added_monitors!($node_a, 1);
981 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
983 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
986 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
988 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
990 expect_pending_htlcs_forwardable!($node_a);
991 check_added_monitors!($node_a, 1);
993 let channel_state = $node_a.node.channel_state.lock().unwrap();
994 assert_eq!(channel_state.pending_msg_events.len(), 1);
995 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
996 assert_ne!(*node_id, $node_b.node.get_our_node_id());
997 } else { panic!("Unexpected event"); }
999 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1005 /// Get a payment preimage and hash.
1007 macro_rules! get_payment_preimage_hash {
1008 ($dest_node: expr) => {
1010 get_payment_preimage_hash!($dest_node, None)
1013 ($dest_node: expr, $min_value_msat: expr) => {
1015 let mut payment_count = $dest_node.network_payment_count.borrow_mut();
1016 let payment_preimage = PaymentPreimage([*payment_count; 32]);
1017 *payment_count += 1;
1018 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
1019 let payment_secret = $dest_node.node.create_inbound_payment_for_hash(payment_hash, $min_value_msat, 7200).unwrap();
1020 (payment_preimage, payment_hash, payment_secret)
1026 macro_rules! get_route_and_payment_hash {
1027 ($send_node: expr, $recv_node: expr, $recv_value: expr) => {{
1028 get_route_and_payment_hash!($send_node, $recv_node, vec![], $recv_value, TEST_FINAL_CLTV)
1030 ($send_node: expr, $recv_node: expr, $last_hops: expr, $recv_value: expr, $cltv: expr) => {{
1031 let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash!($recv_node, Some($recv_value));
1032 let payee = $crate::routing::router::Payee::from_node_id($recv_node.node.get_our_node_id())
1033 .with_features($crate::ln::features::InvoiceFeatures::known())
1034 .with_route_hints($last_hops);
1035 let scorer = ::util::test_utils::TestScorer::with_fixed_penalty(0);
1036 let route = ::routing::router::get_route(
1037 &$send_node.node.get_our_node_id(), &payee, $send_node.network_graph,
1038 Some(&$send_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
1039 $recv_value, $cltv, $send_node.logger, &scorer
1041 (route, payment_hash, payment_preimage, payment_secret)
1045 macro_rules! expect_pending_htlcs_forwardable_ignore {
1047 let events = $node.node.get_and_clear_pending_events();
1048 assert_eq!(events.len(), 1);
1050 Event::PendingHTLCsForwardable { .. } => { },
1051 _ => panic!("Unexpected event"),
1056 macro_rules! expect_pending_htlcs_forwardable {
1058 expect_pending_htlcs_forwardable_ignore!($node);
1059 $node.node.process_pending_htlc_forwards();
1064 macro_rules! expect_pending_htlcs_forwardable_from_events {
1065 ($node: expr, $events: expr, $ignore: expr) => {{
1066 assert_eq!($events.len(), 1);
1068 Event::PendingHTLCsForwardable { .. } => { },
1069 _ => panic!("Unexpected event"),
1072 $node.node.process_pending_htlc_forwards();
1077 #[cfg(any(test, feature = "unstable"))]
1078 macro_rules! expect_payment_received {
1079 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr) => {
1080 let events = $node.node.get_and_clear_pending_events();
1081 assert_eq!(events.len(), 1);
1083 Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
1084 assert_eq!($expected_payment_hash, *payment_hash);
1085 assert_eq!($expected_recv_value, amt);
1087 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1088 assert!(payment_preimage.is_none());
1089 assert_eq!($expected_payment_secret, *payment_secret);
1094 _ => panic!("Unexpected event"),
1100 macro_rules! expect_payment_sent_without_paths {
1101 ($node: expr, $expected_payment_preimage: expr) => {
1102 expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, false);
1104 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1105 expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, false);
1109 macro_rules! expect_payment_sent {
1110 ($node: expr, $expected_payment_preimage: expr) => {
1111 expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, true);
1113 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1114 expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, true);
1116 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => {
1117 let events = $node.node.get_and_clear_pending_events();
1118 let expected_payment_hash = PaymentHash(Sha256::hash(&$expected_payment_preimage.0).into_inner());
1120 assert!(events.len() > 1);
1122 assert_eq!(events.len(), 1);
1124 let expected_payment_id = match events[0] {
1125 Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
1126 assert_eq!($expected_payment_preimage, *payment_preimage);
1127 assert_eq!(expected_payment_hash, *payment_hash);
1128 assert!(fee_paid_msat.is_some());
1129 if $expected_fee_msat_opt.is_some() {
1130 assert_eq!(*fee_paid_msat, $expected_fee_msat_opt);
1134 _ => panic!("Unexpected event"),
1137 for i in 1..events.len() {
1139 Event::PaymentPathSuccessful { payment_id, payment_hash, .. } => {
1140 assert_eq!(payment_id, expected_payment_id);
1141 assert_eq!(payment_hash, Some(expected_payment_hash));
1143 _ => panic!("Unexpected event"),
1151 macro_rules! expect_payment_path_successful {
1153 let events = $node.node.get_and_clear_pending_events();
1154 assert_eq!(events.len(), 1);
1156 Event::PaymentPathSuccessful { .. } => {},
1157 _ => panic!("Unexpected event"),
1162 macro_rules! expect_payment_forwarded {
1163 ($node: expr, $expected_fee: expr, $upstream_force_closed: expr) => {
1164 let events = $node.node.get_and_clear_pending_events();
1165 assert_eq!(events.len(), 1);
1167 Event::PaymentForwarded { fee_earned_msat, claim_from_onchain_tx } => {
1168 assert_eq!(fee_earned_msat, $expected_fee);
1169 assert_eq!(claim_from_onchain_tx, $upstream_force_closed);
1171 _ => panic!("Unexpected event"),
1177 macro_rules! expect_payment_failed_with_update {
1178 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr, $scid: expr, $chan_closed: expr) => {
1179 let events = $node.node.get_and_clear_pending_events();
1180 assert_eq!(events.len(), 1);
1182 Event::PaymentPathFailed { ref payment_hash, rejected_by_dest, ref network_update, ref error_code, ref error_data, ref path, ref retry, .. } => {
1183 assert_eq!(*payment_hash, $expected_payment_hash, "unexpected payment_hash");
1184 assert_eq!(rejected_by_dest, $rejected_by_dest, "unexpected rejected_by_dest value");
1185 assert!(retry.is_some(), "expected retry.is_some()");
1186 assert_eq!(retry.as_ref().unwrap().final_value_msat, path.last().unwrap().fee_msat, "Retry amount should match last hop in path");
1187 assert_eq!(retry.as_ref().unwrap().payee.pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
1188 assert!(error_code.is_some(), "expected error_code.is_some() = true");
1189 assert!(error_data.is_some(), "expected error_data.is_some() = true");
1190 match network_update {
1191 &Some(NetworkUpdate::ChannelUpdateMessage { ref msg }) if !$chan_closed => {
1192 assert_eq!(msg.contents.short_channel_id, $scid);
1193 assert_eq!(msg.contents.flags & 2, 0);
1195 &Some(NetworkUpdate::ChannelClosed { short_channel_id, is_permanent }) if $chan_closed => {
1196 assert_eq!(short_channel_id, $scid);
1197 assert!(is_permanent);
1199 Some(_) => panic!("Unexpected update type"),
1200 None => panic!("Expected update"),
1203 _ => panic!("Unexpected event"),
1209 macro_rules! expect_payment_failed {
1210 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
1211 let events = $node.node.get_and_clear_pending_events();
1212 assert_eq!(events.len(), 1);
1214 Event::PaymentPathFailed { ref payment_hash, rejected_by_dest, network_update: _, ref error_code, ref error_data, ref path, ref retry, .. } => {
1215 assert_eq!(*payment_hash, $expected_payment_hash, "unexpected payment_hash");
1216 assert_eq!(rejected_by_dest, $rejected_by_dest, "unexpected rejected_by_dest value");
1217 assert!(retry.is_some(), "expected retry.is_some()");
1218 assert_eq!(retry.as_ref().unwrap().final_value_msat, path.last().unwrap().fee_msat, "Retry amount should match last hop in path");
1219 assert_eq!(retry.as_ref().unwrap().payee.pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
1220 assert!(error_code.is_some(), "expected error_code.is_some() = true");
1221 assert!(error_data.is_some(), "expected error_data.is_some() = true");
1223 assert_eq!(error_code.unwrap(), $expected_error_code, "unexpected error code");
1224 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data, "unexpected error data");
1227 _ => panic!("Unexpected event"),
1232 pub fn send_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_paths: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: PaymentSecret) -> PaymentId {
1233 let payment_id = origin_node.node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap();
1234 check_added_monitors!(origin_node, expected_paths.len());
1235 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
1239 pub fn pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_received_expected: bool, expected_preimage: Option<PaymentPreimage>) {
1240 let mut payment_event = SendEvent::from_event(ev);
1241 let mut prev_node = origin_node;
1243 for (idx, &node) in expected_path.iter().enumerate() {
1244 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
1246 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
1247 check_added_monitors!(node, 0);
1248 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
1250 expect_pending_htlcs_forwardable!(node);
1252 if idx == expected_path.len() - 1 {
1253 let events_2 = node.node.get_and_clear_pending_events();
1254 if payment_received_expected {
1255 assert_eq!(events_2.len(), 1);
1257 Event::PaymentReceived { ref payment_hash, ref purpose, amt} => {
1258 assert_eq!(our_payment_hash, *payment_hash);
1260 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1261 assert_eq!(expected_preimage, *payment_preimage);
1262 assert_eq!(our_payment_secret.unwrap(), *payment_secret);
1264 PaymentPurpose::SpontaneousPayment(payment_preimage) => {
1265 assert_eq!(expected_preimage.unwrap(), *payment_preimage);
1266 assert!(our_payment_secret.is_none());
1269 assert_eq!(amt, recv_value);
1271 _ => panic!("Unexpected event"),
1274 assert!(events_2.is_empty());
1277 let mut events_2 = node.node.get_and_clear_pending_msg_events();
1278 assert_eq!(events_2.len(), 1);
1279 check_added_monitors!(node, 1);
1280 payment_event = SendEvent::from_event(events_2.remove(0));
1281 assert_eq!(payment_event.msgs.len(), 1);
1288 pub fn pass_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: PaymentSecret) {
1289 let mut events = origin_node.node.get_and_clear_pending_msg_events();
1290 assert_eq!(events.len(), expected_route.len());
1291 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
1292 // Once we've gotten through all the HTLCs, the last one should result in a
1293 // PaymentReceived (but each previous one should not!), .
1294 let expect_payment = path_idx == expected_route.len() - 1;
1295 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), Some(our_payment_secret), ev, expect_payment, None);
1299 pub fn send_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret, PaymentId) {
1300 let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(expected_route.last().unwrap());
1301 let payment_id = send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, our_payment_secret);
1302 (our_payment_preimage, our_payment_hash, our_payment_secret, payment_id)
1305 pub fn do_claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage) -> u64 {
1306 for path in expected_paths.iter() {
1307 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
1309 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage));
1310 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
1312 let mut expected_total_fee_msat = 0;
1314 macro_rules! msgs_from_ev {
1317 &MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
1318 assert!(update_add_htlcs.is_empty());
1319 assert_eq!(update_fulfill_htlcs.len(), 1);
1320 assert!(update_fail_htlcs.is_empty());
1321 assert!(update_fail_malformed_htlcs.is_empty());
1322 assert!(update_fee.is_none());
1323 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
1325 _ => panic!("Unexpected event"),
1329 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
1330 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
1331 assert_eq!(events.len(), expected_paths.len());
1332 for ev in events.iter() {
1333 per_path_msgs.push(msgs_from_ev!(ev));
1336 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
1337 let mut next_msgs = Some(path_msgs);
1338 let mut expected_next_node = next_hop;
1340 macro_rules! last_update_fulfill_dance {
1341 ($node: expr, $prev_node: expr) => {
1343 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1344 check_added_monitors!($node, 0);
1345 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
1346 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
1350 macro_rules! mid_update_fulfill_dance {
1351 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
1353 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1354 let fee = $node.node.channel_state.lock().unwrap().by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap().config.forwarding_fee_base_msat;
1355 expect_payment_forwarded!($node, Some(fee as u64), false);
1356 expected_total_fee_msat += fee as u64;
1357 check_added_monitors!($node, 1);
1358 let new_next_msgs = if $new_msgs {
1359 let events = $node.node.get_and_clear_pending_msg_events();
1360 assert_eq!(events.len(), 1);
1361 let (res, nexthop) = msgs_from_ev!(&events[0]);
1362 expected_next_node = nexthop;
1365 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
1368 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
1369 next_msgs = new_next_msgs;
1374 let mut prev_node = expected_route.last().unwrap();
1375 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
1376 assert_eq!(expected_next_node, node.node.get_our_node_id());
1377 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
1378 if next_msgs.is_some() {
1379 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
1381 assert!(!update_next_msgs);
1382 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
1384 if !skip_last && idx == expected_route.len() - 1 {
1385 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1392 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
1395 expected_total_fee_msat
1397 pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage) {
1398 let expected_total_fee_msat = do_claim_payment_along_route(origin_node, expected_paths, skip_last, our_payment_preimage);
1400 expect_payment_sent!(origin_node, our_payment_preimage, Some(expected_total_fee_msat));
1404 pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage) {
1405 claim_payment_along_route(origin_node, &[expected_route], false, our_payment_preimage);
1408 pub const TEST_FINAL_CLTV: u32 = 70;
1410 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
1411 let payee = Payee::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
1412 .with_features(InvoiceFeatures::known());
1413 let scorer = test_utils::TestScorer::with_fixed_penalty(0);
1414 let route = get_route(
1415 &origin_node.node.get_our_node_id(), &payee, &origin_node.network_graph,
1416 Some(&origin_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
1417 recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer).unwrap();
1418 assert_eq!(route.paths.len(), 1);
1419 assert_eq!(route.paths[0].len(), expected_route.len());
1420 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1421 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1424 let res = send_along_route(origin_node, route, expected_route, recv_value);
1425 (res.0, res.1, res.2)
1428 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
1429 let payee = Payee::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
1430 .with_features(InvoiceFeatures::known());
1431 let scorer = test_utils::TestScorer::with_fixed_penalty(0);
1432 let route = get_route(&origin_node.node.get_our_node_id(), &payee, origin_node.network_graph, None, recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer).unwrap();
1433 assert_eq!(route.paths.len(), 1);
1434 assert_eq!(route.paths[0].len(), expected_route.len());
1435 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1436 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1439 let (_, our_payment_hash, our_payment_preimage) = get_payment_preimage_hash!(expected_route.last().unwrap());
1440 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &Some(our_payment_preimage)), true, APIError::ChannelUnavailable { ref err },
1441 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1444 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
1445 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1446 claim_payment(&origin, expected_route, our_payment_preimage);
1449 pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths_slice: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
1450 let mut expected_paths: Vec<_> = expected_paths_slice.iter().collect();
1451 for path in expected_paths.iter() {
1452 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
1454 assert!(expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash));
1455 expect_pending_htlcs_forwardable!(expected_paths[0].last().unwrap());
1456 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
1458 let mut per_path_msgs: Vec<((msgs::UpdateFailHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
1459 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
1460 assert_eq!(events.len(), expected_paths.len());
1461 for ev in events.iter() {
1462 let (update_fail, commitment_signed, node_id) = match ev {
1463 &MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
1464 assert!(update_add_htlcs.is_empty());
1465 assert!(update_fulfill_htlcs.is_empty());
1466 assert_eq!(update_fail_htlcs.len(), 1);
1467 assert!(update_fail_malformed_htlcs.is_empty());
1468 assert!(update_fee.is_none());
1469 (update_fail_htlcs[0].clone(), commitment_signed.clone(), node_id.clone())
1471 _ => panic!("Unexpected event"),
1473 per_path_msgs.push(((update_fail, commitment_signed), node_id));
1475 per_path_msgs.sort_unstable_by(|(_, node_id_a), (_, node_id_b)| node_id_a.cmp(node_id_b));
1476 expected_paths.sort_unstable_by(|path_a, path_b| path_a[path_a.len() - 2].node.get_our_node_id().cmp(&path_b[path_b.len() - 2].node.get_our_node_id()));
1478 for (i, (expected_route, (path_msgs, next_hop))) in expected_paths.iter().zip(per_path_msgs.drain(..)).enumerate() {
1479 let mut next_msgs = Some(path_msgs);
1480 let mut expected_next_node = next_hop;
1481 let mut prev_node = expected_route.last().unwrap();
1483 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
1484 assert_eq!(expected_next_node, node.node.get_our_node_id());
1485 let update_next_node = !skip_last || idx != expected_route.len() - 1;
1486 if next_msgs.is_some() {
1487 node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1488 commitment_signed_dance!(node, prev_node, next_msgs.as_ref().unwrap().1, update_next_node);
1489 if !update_next_node {
1490 expect_pending_htlcs_forwardable!(node);
1493 let events = node.node.get_and_clear_pending_msg_events();
1494 if update_next_node {
1495 assert_eq!(events.len(), 1);
1497 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
1498 assert!(update_add_htlcs.is_empty());
1499 assert!(update_fulfill_htlcs.is_empty());
1500 assert_eq!(update_fail_htlcs.len(), 1);
1501 assert!(update_fail_malformed_htlcs.is_empty());
1502 assert!(update_fee.is_none());
1503 expected_next_node = node_id.clone();
1504 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1506 _ => panic!("Unexpected event"),
1509 assert!(events.is_empty());
1511 if !skip_last && idx == expected_route.len() - 1 {
1512 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1519 let prev_node = expected_route.first().unwrap();
1520 origin_node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1521 check_added_monitors!(origin_node, 0);
1522 assert!(origin_node.node.get_and_clear_pending_msg_events().is_empty());
1523 commitment_signed_dance!(origin_node, prev_node, next_msgs.as_ref().unwrap().1, false);
1524 let events = origin_node.node.get_and_clear_pending_events();
1525 assert_eq!(events.len(), 1);
1527 Event::PaymentPathFailed { payment_hash, rejected_by_dest, all_paths_failed, ref path, .. } => {
1528 assert_eq!(payment_hash, our_payment_hash);
1529 assert!(rejected_by_dest);
1530 assert_eq!(all_paths_failed, i == expected_paths.len() - 1);
1531 for (idx, hop) in expected_route.iter().enumerate() {
1532 assert_eq!(hop.node.get_our_node_id(), path[idx].pubkey);
1535 _ => panic!("Unexpected event"),
1541 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1542 fail_payment_along_route(origin_node, &[&expected_path[..]], false, our_payment_hash);
1545 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1546 let mut chan_mon_cfgs = Vec::new();
1547 for i in 0..node_count {
1548 let tx_broadcaster = test_utils::TestBroadcaster {
1549 txn_broadcasted: Mutex::new(Vec::new()),
1550 blocks: Arc::new(Mutex::new(vec![(genesis_block(Network::Testnet).header, 0)])),
1552 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
1553 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
1554 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1555 let persister = test_utils::TestPersister::new();
1556 let seed = [i as u8; 32];
1557 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1558 let network_graph = NetworkGraph::new(chain_source.genesis_hash);
1560 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_source, logger, persister, keys_manager, network_graph });
1566 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1567 let mut nodes = Vec::new();
1569 for i in 0..node_count {
1570 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[i].chain_source), &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator, &chanmon_cfgs[i].persister, &chanmon_cfgs[i].keys_manager);
1571 let seed = [i as u8; 32];
1572 nodes.push(NodeCfg {
1573 chain_source: &chanmon_cfgs[i].chain_source,
1574 logger: &chanmon_cfgs[i].logger,
1575 tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster,
1576 fee_estimator: &chanmon_cfgs[i].fee_estimator,
1578 keys_manager: &chanmon_cfgs[i].keys_manager,
1580 features: InitFeatures::known(),
1581 network_graph: &chanmon_cfgs[i].network_graph,
1588 pub fn test_default_channel_config() -> UserConfig {
1589 let mut default_config = UserConfig::default();
1590 // Set cltv_expiry_delta slightly lower to keep the final CLTV values inside one byte in our
1591 // tests so that our script-length checks don't fail (see ACCEPTED_HTLC_SCRIPT_WEIGHT).
1592 default_config.channel_options.cltv_expiry_delta = 6*6;
1593 default_config.channel_options.announced_channel = true;
1594 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1595 // When most of our tests were written, the default HTLC minimum was fixed at 1000.
1596 // It now defaults to 1, so we simply set it to the expected value here.
1597 default_config.own_channel_config.our_htlc_minimum_msat = 1000;
1598 // When most of our tests were written, we didn't have the notion of a `max_dust_htlc_exposure_msat`,
1599 // It now defaults to 5_000_000 msat; to avoid interfering with tests we bump it to 50_000_000 msat.
1600 default_config.channel_options.max_dust_htlc_exposure_msat = 50_000_000;
1604 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingSigner, &'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
1605 let mut chanmgrs = Vec::new();
1606 for i in 0..node_count {
1607 let network = Network::Testnet;
1608 let params = ChainParameters {
1610 best_block: BestBlock::from_genesis(network),
1612 let node = ChannelManager::new(cfgs[i].fee_estimator, &cfgs[i].chain_monitor, cfgs[i].tx_broadcaster, cfgs[i].logger, cfgs[i].keys_manager,
1613 if node_config[i].is_some() { node_config[i].clone().unwrap() } else { test_default_channel_config() }, params);
1614 chanmgrs.push(node);
1620 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingSigner, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
1621 let mut nodes = Vec::new();
1622 let chan_count = Rc::new(RefCell::new(0));
1623 let payment_count = Rc::new(RefCell::new(0));
1624 let connect_style = Rc::new(RefCell::new(ConnectStyle::FullBlockViaListen));
1626 for i in 0..node_count {
1627 let net_graph_msg_handler = NetGraphMsgHandler::new(cfgs[i].network_graph, None, cfgs[i].logger);
1629 chain_source: cfgs[i].chain_source, tx_broadcaster: cfgs[i].tx_broadcaster,
1630 chain_monitor: &cfgs[i].chain_monitor, keys_manager: &cfgs[i].keys_manager,
1631 node: &chan_mgrs[i], network_graph: &cfgs[i].network_graph, net_graph_msg_handler,
1632 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1633 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1634 blocks: Arc::clone(&cfgs[i].tx_broadcaster.blocks),
1635 connect_style: Rc::clone(&connect_style),
1639 for i in 0..node_count {
1640 for j in (i+1)..node_count {
1641 nodes[i].node.peer_connected(&nodes[j].node.get_our_node_id(), &msgs::Init { features: cfgs[j].features.clone() });
1642 nodes[j].node.peer_connected(&nodes[i].node.get_our_node_id(), &msgs::Init { features: cfgs[i].features.clone() });
1649 // Note that the following only works for CLTV values up to 128
1650 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 137; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1651 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1653 #[derive(PartialEq)]
1654 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1655 /// Tests that the given node has broadcast transactions for the given Channel
1657 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
1658 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1659 /// broadcast and the revoked outputs were claimed.
1661 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1662 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1664 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1666 pub fn test_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, chan: &(msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction), commitment_tx: Option<Transaction>, has_htlc_tx: HTLCType) -> Vec<Transaction> {
1667 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1668 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1670 let mut res = Vec::with_capacity(2);
1671 node_txn.retain(|tx| {
1672 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1673 check_spends!(tx, chan.3);
1674 if commitment_tx.is_none() {
1675 res.push(tx.clone());
1680 if let Some(explicit_tx) = commitment_tx {
1681 res.push(explicit_tx.clone());
1684 assert_eq!(res.len(), 1);
1686 if has_htlc_tx != HTLCType::NONE {
1687 node_txn.retain(|tx| {
1688 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1689 check_spends!(tx, res[0]);
1690 if has_htlc_tx == HTLCType::TIMEOUT {
1691 assert!(tx.lock_time != 0);
1693 assert!(tx.lock_time == 0);
1695 res.push(tx.clone());
1699 assert!(res.len() == 2 || res.len() == 3);
1701 assert_eq!(res[1], res[2]);
1705 assert!(node_txn.is_empty());
1709 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1710 /// HTLC transaction.
1711 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1712 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1713 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1714 // for revoked htlc outputs
1715 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1716 node_txn.retain(|tx| {
1717 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1718 check_spends!(tx, revoked_tx);
1722 node_txn.retain(|tx| {
1723 check_spends!(tx, commitment_revoked_tx);
1726 assert!(node_txn.is_empty());
1729 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1730 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1732 assert!(node_txn.len() >= 1);
1733 assert_eq!(node_txn[0].input.len(), 1);
1734 let mut found_prev = false;
1736 for tx in prev_txn {
1737 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1738 check_spends!(node_txn[0], tx);
1739 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1740 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1746 assert!(found_prev);
1748 let mut res = Vec::new();
1749 mem::swap(&mut *node_txn, &mut res);
1753 pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize, needs_err_handle: bool, expected_error: &str) {
1754 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1755 assert_eq!(events_1.len(), 2);
1756 let as_update = match events_1[0] {
1757 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1760 _ => panic!("Unexpected event"),
1763 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
1764 assert_eq!(node_id, nodes[b].node.get_our_node_id());
1765 assert_eq!(msg.data, expected_error);
1766 if needs_err_handle {
1767 nodes[b].node.handle_error(&nodes[a].node.get_our_node_id(), msg);
1770 _ => panic!("Unexpected event"),
1773 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1774 assert_eq!(events_2.len(), if needs_err_handle { 1 } else { 2 });
1775 let bs_update = match events_2[0] {
1776 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1779 _ => panic!("Unexpected event"),
1781 if !needs_err_handle {
1783 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
1784 assert_eq!(node_id, nodes[a].node.get_our_node_id());
1785 assert_eq!(msg.data, expected_error);
1787 _ => panic!("Unexpected event"),
1792 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1793 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1797 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1798 handle_announce_close_broadcast_events(nodes, a, b, false, "Channel closed because commitment or closing transaction was confirmed on chain.");
1802 macro_rules! get_channel_value_stat {
1803 ($node: expr, $channel_id: expr) => {{
1804 let chan_lock = $node.node.channel_state.lock().unwrap();
1805 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1806 chan.get_value_stat()
1810 macro_rules! get_chan_reestablish_msgs {
1811 ($src_node: expr, $dst_node: expr) => {
1813 let mut res = Vec::with_capacity(1);
1814 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1815 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1816 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1817 res.push(msg.clone());
1819 panic!("Unexpected event")
1827 macro_rules! handle_chan_reestablish_msgs {
1828 ($src_node: expr, $dst_node: expr) => {
1830 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1832 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1834 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1840 if let Some(&MessageSendEvent::SendAnnouncementSignatures { ref node_id, msg: _ }) = msg_events.get(idx) {
1842 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1845 let mut revoke_and_ack = None;
1846 let mut commitment_update = None;
1847 let order = if let Some(ev) = msg_events.get(idx) {
1849 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1850 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1851 revoke_and_ack = Some(msg.clone());
1853 RAACommitmentOrder::RevokeAndACKFirst
1855 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1856 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1857 commitment_update = Some(updates.clone());
1859 RAACommitmentOrder::CommitmentFirst
1861 &MessageSendEvent::SendChannelUpdate { .. } => RAACommitmentOrder::CommitmentFirst,
1862 _ => panic!("Unexpected event"),
1865 RAACommitmentOrder::CommitmentFirst
1868 if let Some(ev) = msg_events.get(idx) {
1870 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1871 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1872 assert!(revoke_and_ack.is_none());
1873 revoke_and_ack = Some(msg.clone());
1876 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1877 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1878 assert!(commitment_update.is_none());
1879 commitment_update = Some(updates.clone());
1882 &MessageSendEvent::SendChannelUpdate { .. } => {},
1883 _ => panic!("Unexpected event"),
1887 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, ref msg }) = msg_events.get(idx) {
1888 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1889 assert_eq!(msg.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
1892 (funding_locked, revoke_and_ack, commitment_update, order)
1897 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1898 /// for claims/fails they are separated out.
1899 pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_funding_locked: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_htlc_fails: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
1900 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1901 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1902 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1903 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1905 if send_funding_locked.0 {
1906 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1908 for reestablish in reestablish_1.iter() {
1909 assert_eq!(reestablish.next_remote_commitment_number, 0);
1912 if send_funding_locked.1 {
1913 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1915 for reestablish in reestablish_2.iter() {
1916 assert_eq!(reestablish.next_remote_commitment_number, 0);
1919 if send_funding_locked.0 || send_funding_locked.1 {
1920 // If we expect any funding_locked's, both sides better have set
1921 // next_holder_commitment_number to 1
1922 for reestablish in reestablish_1.iter() {
1923 assert_eq!(reestablish.next_local_commitment_number, 1);
1925 for reestablish in reestablish_2.iter() {
1926 assert_eq!(reestablish.next_local_commitment_number, 1);
1930 let mut resp_1 = Vec::new();
1931 for msg in reestablish_1 {
1932 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1933 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1935 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1936 check_added_monitors!(node_b, 1);
1938 check_added_monitors!(node_b, 0);
1941 let mut resp_2 = Vec::new();
1942 for msg in reestablish_2 {
1943 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1944 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1946 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1947 check_added_monitors!(node_a, 1);
1949 check_added_monitors!(node_a, 0);
1952 // We don't yet support both needing updates, as that would require a different commitment dance:
1953 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_htlc_fails.0 == 0 &&
1954 pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1955 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_htlc_fails.1 == 0 &&
1956 pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1958 for chan_msgs in resp_1.drain(..) {
1959 if send_funding_locked.0 {
1960 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1961 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1962 if !announcement_event.is_empty() {
1963 assert_eq!(announcement_event.len(), 1);
1964 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1965 //TODO: Test announcement_sigs re-sending
1966 } else { panic!("Unexpected event!"); }
1969 assert!(chan_msgs.0.is_none());
1972 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1973 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1974 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1975 check_added_monitors!(node_a, 1);
1977 assert!(chan_msgs.1.is_none());
1979 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_htlc_fails.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1980 let commitment_update = chan_msgs.2.unwrap();
1981 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1982 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1984 assert!(commitment_update.update_add_htlcs.is_empty());
1986 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1987 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.0 + pending_cell_htlc_fails.0);
1988 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1989 for update_add in commitment_update.update_add_htlcs {
1990 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1992 for update_fulfill in commitment_update.update_fulfill_htlcs {
1993 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1995 for update_fail in commitment_update.update_fail_htlcs {
1996 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1999 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
2000 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
2002 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
2003 check_added_monitors!(node_a, 1);
2004 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
2005 // No commitment_signed so get_event_msg's assert(len == 1) passes
2006 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
2007 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
2008 check_added_monitors!(node_b, 1);
2011 assert!(chan_msgs.2.is_none());
2015 for chan_msgs in resp_2.drain(..) {
2016 if send_funding_locked.1 {
2017 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
2018 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
2019 if !announcement_event.is_empty() {
2020 assert_eq!(announcement_event.len(), 1);
2021 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
2022 //TODO: Test announcement_sigs re-sending
2023 } else { panic!("Unexpected event!"); }
2026 assert!(chan_msgs.0.is_none());
2029 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
2030 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
2031 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
2032 check_added_monitors!(node_b, 1);
2034 assert!(chan_msgs.1.is_none());
2036 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_htlc_fails.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
2037 let commitment_update = chan_msgs.2.unwrap();
2038 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
2039 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
2041 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.1 + pending_cell_htlc_claims.1);
2042 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.1 + pending_cell_htlc_fails.1);
2043 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
2044 for update_add in commitment_update.update_add_htlcs {
2045 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
2047 for update_fulfill in commitment_update.update_fulfill_htlcs {
2048 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
2050 for update_fail in commitment_update.update_fail_htlcs {
2051 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
2054 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
2055 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
2057 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
2058 check_added_monitors!(node_b, 1);
2059 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
2060 // No commitment_signed so get_event_msg's assert(len == 1) passes
2061 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
2062 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
2063 check_added_monitors!(node_a, 1);
2066 assert!(chan_msgs.2.is_none());